Humans

  1. Chemistry

    Scientists Say: PFAS

    Non-stick coatings, stain-resistant cloth and other common materials leach long-lived PFAS into soil and water.

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  2. Brain

    Ingredients in popular snack foods can make them addictive

    Researchers find that highly processed foods rich in sugar and added fat may be as addictive as tobacco.

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  3. Health & Medicine

    How to be heat-safe when playing sports

    Protecting young athletes from overheating is getting more important as climate change turns up the temperature.

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  4. Genetics

    Experiment: Are fingerprint patterns inherited?

    Let’s investigate whether fingerprint patterns are created randomly or whether they are influenced by genetics.

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  5. Chemistry

    Chemists have unlocked the secrets of long-lasting Roman concrete

    By searching ancient texts and ruins, scientists found a concrete recipe that could make buildings stronger — and help address climate change.

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  6. Agriculture

    Native Amazonians make rich soils — and ancient people may have too

    Modern Amazonians make nutrient-rich soil from ash, food scraps and burns. The soil strongly resembles ancient “dark earth” found in the region.

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  7. Health & Medicine

    Scientists Say: Kidney

    The kidneys remove waste and excess water from the blood, forming urine.

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  8. Psychology

    There’s a real upside to knowing you could be wrong

    We’re often certain that what we believe is true. But questioning those beliefs, as Galileo did, can help us learn better — and even perform better on tests.

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  9. Health & Medicine

    Let’s learn about allergies

    Allergies are caused by the body’s immune system overreacting to harmless substances.

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  10. Brain

    Scientists Say: Anxiety

    Some nervousness, or anxiety, is normal. Too much can be harmful.

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  11. Health & Medicine

    New brain scans may show if a concussion has not yet healed

    Concussions change certain brain waves, and delta waves may be the best signs of when teens can return to competitive sports.

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  12. Archaeology

    Minding your mummies: The science of mummification

    In this science project, you will learn about the rituals and science of mummification by mummifying a hot dog.

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